High-quality screwdriver bit set, excellent for Gamecube controllers, other products that use tripoint screws, like Gameboys and plenty of other consumer electronics.
The top rotates, allowing for very fast use. All the bits are constantly magnetized by magnets integrated to the fold-up case, which also serve as holding the bits in place.
The handle is of soft rubber, providing excellent grip. The base is quite thin, allowing for speedy loosening of the screw once you've overcome the initial tightening.
For Gamecube controllers, the Y1 bit fits excellently, very similar to the Wera microstix 1, but just a bit tightly. It still grabs the screw heads very securely, but they won't get stuck as much as on the Wera, allowing you to drop them from the screwdriver head a bit more quickly.
The Y0 bit is slightly smaller and grabs the GCC tripoint screws less tightly (though still enough to prevent cam-out), and thus allows you to drop them quickly by tapping the handle.
There's a wide selection of tips that are convenient for working on Gamecube controllers and other controllers, such as PH1 and PH0.